Sustanon: Chemistry And Mechanisms of Action

Sustanon is made up of a composite of
different forms of testosterone. This means it has the same basic chemical
structure as the hormone that’s found inside the body and is produced by the
testes. Where it differs is in the attached esters, which are basically
chemical delivery agents that dictate the rate at which the active part of the
chemical, in that case the testosterone, is processed.

The different esters here include:

Propionate, with a half-life of
4 days

Phenylpropionate, with a
similar 4 day half-life

Isocaproate, with a half-life
of 9 days

Decanoate, also with a
half-life of 9 days

This means that, due to both longer esters,
maximal levels can be achieved with administration once weekly, although the
design is supposedly to help multiple peaking after each injection.

Ingredients and composition

Along with what the different ingredients
are in Sustanon, the composition also dictates its impact, and the rate of it,
as a greater concentration of longer acting testosterone agents will produce a
more gradual effect.

The ingredients here would include:

60 milligrams of testosterone
phenylpropionate

30 milligrams of testosterone
propionate

60 milligrams of testosterone
isocaproate

100 milligrams of testosterone
decanoate

This would naturally skew its profile more
towards a longer acting and more gradual anabolic, which will affect the place
most athletic or recreational users place it in their plans.

Mechanisms of action

Sustanon would exert its impact much in the
same way as any individual one of its ingredients. Namely, by binding to
androgen receptors to elicit a change in cellular signaling, in order to boost
muscle protein synthesis and nitrogen retention, as well as cause certain cells
to produce more red blood cells.

The chemical would also bind to some
aromatase enzymes to produce estrogen and DHT, which would elicit some unwanted
side effects like fat and water buildup, and skin or virilizing issues
respectively.

Common Programs In which It’s
Included

Because of its slightly more gradual and
long-lasting nature, you will generally find Sustanon being included in either
programs where the goal is a large accumulation in mass and strength, or in
those, where lower amounts are used, in which the goal is slow and efficient
gains in lean mass and strength and power.

It may actually be more effective in the
former, due to a reported greater potency on a milligram-per-milligram basis, because
of a supposed greater level of unbound testosterone in the chemical’s
structure.

These programs can last anywhere from 12
weeks to a year.

Dosing and Administration of
Sustanon

Common dosing for male recreational or
competitive users can vary anywhere from 250 to 2000 milligrams, taken once
weekly. Females are advised against its use completely for fear of the
virilizing effects mentioned above.

It should be noted that higher amounts are
usually only used by those with a rich history of prior anabolic use, as their bodies
have a higher number of androgen receptors and they are therefore less
sensitive to its effects, and further amounts are needed to continue progress
towards their goals.